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Old 03-01-2010, 03:17 AM
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replacing one injector

I went thru the mod section here and got a good idea on the r and r of an injector. My question is, If doing only one, do i have to remove the oil plugs in that head to drain the oil rails? I was thinking i could just remove the injector and the glow plug. Install the new injector, and bump the motor over say 10 times to make sure no oil is in the cylinder. Reinstall the glow plug and start it.
Will that be ok not removing the oilplug between the cylinders?
Also how do i keep the other 7 injectors from firing? Just pull the number 30 pcm fuel heater fuse? I would prefer no fuel getting pumped to the other 7 cylinders at this timetoo if i can?
thx
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Old 03-01-2010, 10:46 AM
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No you don't have to, just realize that all the oil and fuel in that head will empty into that one cylinder. I would rotate the engine over by hand with the injector installed and the glow plug out. Then turn it over with the starter a couple times with the engine harness unplugged (very large plug on the driver side valve cover)just to make sure everything is out of there.

I am not a big fan of pulling those plugs out...
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Old 03-01-2010, 11:28 AM
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isn't it going to be real hard to turn it over by hand? How would i do that? Can i get at the crank bolt from underneath and do it?
DO to fuel getting in there then putting into the valve cover area will I need to change the oil right after?
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Old 03-01-2010, 11:59 AM
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Nope, you just need a large enough socket to go over the dampener bolt along with a good sized half inch drive ratchet
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Old 03-01-2010, 12:20 PM
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how about the fuel that will get in the oil?
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Old 03-01-2010, 01:41 PM
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You got to change your oil after you swap injectors.
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